Another reason to make nodeless. (Geert Poorteman)
That's about right for your first splitting experience. Did you flame the culm first? I've found that a light-moderate flamed culm is a lot easier to control your splits with. You will get better. So you ended up with enough to make 2 one tip rods on your first try. I think that's better than I did. I think my culm was still a little green and I got terrible runout. It wasn't until about rod #3 that I discovered the flaming first trick. (Larry Swearingen)
When I split, I generally start by hand. First split in half by starting the split with a froe/knife and pulling each side apart with equal force. Should give you a nice even split. I then take each half and split it into thirds using the same method..
I have a nail driven into a piece of wood that I use to split further. I split the "third" piece in half with a nail driven into the end of my workbench. The head of the nail helps keep the bamboo strip level so that the split stays nice and straight. If it starts to wander to one side or the other, put pressure in the direction opposite of where the split is wandering. This too takes a little getting used to, but I find is much easier to control.
Here is a link to a tutorial on splitting by hand.
Hope this helps. (Brian Morrow)
Well, Ron, as you said, this is your first attempt. You have enough strips for 2 2 piecers or a rod with two tips. You said you had a few more strips that you could use. Since you have never done it or seen it done, i say "Good job, man!" Contrary to what you might think, not everyone gets 24 usable strips. In part it will depend on the size of the culm. i have seen some little ones lately that no one can get 24 strips from. Now, forward, upward. Watch the fingers! (Timothy Troester)
Splitting out strips is one of the many small steps in making a bamboo fly rod that does get a lot better with a little practice. Fortunately, when I first got the rod making bug I did not have any good bamboo on hand and so I practiced with what I could find at the garden centers. The bamboo was cheap and good practice, especially for splitting, but also for planing.
I found that a little practice really helps, and having cheap bamboo to practice with enabled me to try different methods to see what worked best for me. I am now on rod #7 and on the last splitting session only lost two butt strips and two tip strips to splitting mishaps.
Getting over half your strips to survive the splitting process is a lot better than I did the first time I split bamboo. You may want to get some practice cane from a local garden center to split out for extra strips to practice on for straightening bends, flatting nodes, as well rough and final planing, especially if you are making a two tip rod with only 14 good tip strips left after splitting. (Joe Hudock)
While most instructional rodmaking books talk about removing the inner nodal dams, I don't hear much about when you all are doing this during the splitting process. From my experience these must be removed using a half round wood gouge after halving the culm. Remove as much of the dam as possible so the inner dam area is level with the area on either side of the dam. After this, splitting into smaller strips is much easier and the splits at nodes aren't influenced as much by the material at the dams. (Winston Binney)
I tried using a gouge (likely a bit dull in hindsight) for maybe one or two nodal dams on my first culm--didn't like the fact I had to clamp the half culm or butt it up against something then start whacking away while it's rocking or sliding around. Seemed I never knew just what exactly the outcome would be from one whack to the next --- i.e. would the dam split-off below the desired level, would the gouge bounce back at me, or would I slice the gouge-holding hand on the section edges, etc. I figured there had to be a more 'refined' technique, and there it was right in front of me -- a flex shaft rotary tool (like a Foredom) with a coarse carbide rotary burr. MUCH more repeatable control and precision. One can neatly feather the dam down to the surrounding pith surface. Takes me about 10 seconds at most per dam. Yeah, it generates some dirt, but it works very well for me. (Jim Sency)
I don't remove it until after I actually cut the strips to length. Call it the "Tony Spezio Don't Work On It Unless You Have To" approach. If I'm not going to have a node in the blank, I don't want to work on it. (Todd Talsma)
I usually save dam removal for after the beavers have abandoned the lodge AND/OR I'm down to sixths on the culm, at which point I put the end of the sixth against something sturdy, turn it pith side up, and make a quick chop with the trusty K-Bar! I'm actually approaching the dam as you would a pile of bricks if you were taking your 5th dan black belt test. The knife is slid over the pith surface, accelerating rapidly into the base of the dam and removing most or all of it in one swell foop, so to speak. Screams of "Keee-YAH!" and bowing are both optional. Simple, fast, expeditious! All learned, of course, after I shelled out for the gouge! (Steve Yasgur)
I also learned to not mess with the dams before splitting using Tony's approach but only after I bought the gouge. Oh well. I guess I am accumulating a number of items for the silent auction at the SRG. (George Wood)
I have one collecting dust too along with several other tools that were needed for making rods. (Tony Spezio)
No gouge here, that's what the crappy Stanley blade in the crappy Stanley plane is for.
Set it to take an aggressive cut, dam comes off, then a pass or to two to remove the pith.
Flip the strips on edge and square them up. (Pete Van Schaack)
I've been watching this splitting thread with interest. Although a gouge sounds like an efficient means of removing nodal dams, I use what is, to me, a great method. I take my Dremel with a 1/2" sanding drum, and after I have split to sixths, use that to remove them in a flash. I use the 80 grit ones. You can find them cheap on eBay. Just make sure you use proper ventilation and respiratory protection (I do it outside, wearing a paper filter mask). The dust can be a little thick. (David Spangler)
I remove nodal dams just after I've split the culm into 2 pieces. But I just smack 'em with a hammer. First smack knocks most of it out then a few more little taps and most of the rest is out. Don't see any reason to dull, or buy, a perfectly good gouge. I remove all the rest when I have all the strips split in prep for straightening nodes.
Another lesson learned from Tony Spezio. I don't straighten any nodes that will not be in the final rod. I layout strips with offsets and cut to rough length before I do any straightening. Who wants to screw around with nodes that don't matter? (Larry Swearingen)
Someone once told me that all node work built character.
And since you thought the squirrel trapped in my wife's car was humorous---- he did $1428.00 worth of damage. Try explaining that to an insurance adjuster. (Larry Tucker)
Let me add that for those new folks who might not know Tony. Tony Spezio makes an excellent rod bar none so if anyone thinks that his KISS or shortcut ways of doing things take away from quality, all you have to do is look at his rods. They are excellent from culm to finish. I would advise anyone to try his methods, I haven't found any fault with anything he has shared with me and it has made rod making more enjoyable with less wasted time on what didn't matter to start with. He is a perfectionist and does great work with his hands and tools.
I knock my dams out with 9" lineman pliers.
I've also seen Tony hand split culms and run 1/8" strips one after another. He really isn't hurrying but it sure happens fast from splitting to roughing. To this day I can't duplicate it by a long shot, but what I do is easier than when I started and didn't have his advise. (Jerry Woods)
Just a thought- Has anyone tried soaking a culm before splitting? I haven't but I know most of us soak our strips before planning, so what would the results be if we tried it before splitting? (Mark Dyba)
I have split a few soaked strips that were wider than I needed, They don't split as well as dry strips. (Tony Spezio)
An electric planer is pretty good too, and not quite so bloodthirsty! (Sean McSharry)
I split to 1/4 or 1/6 or even 1/8 and then I cut them with a hatchet. It works just fine and like someone said I like to see things fly across the shop. (Hal Manas)
I don't touch the nodal dams until after all my splitting is said and done. Then, I just whack 'em off with a sanding drum mounted on a drill press. Nodes are your friend... Dennis? Dennis? Beuller? (Mark Wendt)
Fear not, most of us went through the same anguish. Plus it all depends on the diameter of the culm. Don't try to split a 1/4" wide strip off the whole culm. Work at it in equal chunks.
Personally, I mark the end of the culm where I want to split. Most guys split the culm in half, split the half in thirds and split each third in half. Now you should have 12 strips. Then you will split the 12 strips in half. That is when it will start to get a little hairy. When you go to split the final time, is when the strips really seem to roam all over the place. As the strip starts to wander in one direction you will need to apply more pressure (for lack of a better word) to one of the strips to pull it back on line. Practice and you will eventually get the hang of it.
Mike St. Clair showed me a trick and I won't split any other way now. When I got down to the final splits, Mike had me clamp the strip, behind the first node, in a vise. Clamp to the edges, not to the pith and enamel side. Give the bamboo a split with a knife. Then dump the knife and start splitting by hand. If the split starts to wander adjust your pressure to bring it back to the middle. After you split to the first node, re-position the bamboo in the vise at the next node and split . Continue to each node until you finish the strip. Great thing about this method is: you can only split so far at a time. Really helps me keep control of splitting the smaller strips. I have split down to 1/8" using what Mike taught me.
Hopefully my rambling made some sense. Sure is easier to show somebody that explain it. This is only one way to skin a cat, there are plenty more techniques out there. Find a method that works for you and go for it. (Pete Emmel)
Excellent Pete!
I split using the vise method also and it works like a charm.
I'm just going to add that, as the split travels up towards the vise jaws and the split is going one way or another, take note which is the fatter side (the side with the most material on it); grab that side and pull (or push) towards that side, and the split will go towards that side and give you what you're looking for. (Ren Monllor)
I use the vice method as well and it helps you control the split because it cannot run too far at anytime. It also means you are not pushing it into a knife blade with your hands. Did that for a while and thought it was a good way to really get hurt. (Gordon Koppin)
Based on the results of my first splitting I think you should be bragging. I had more spears than usable strips.
With Harry Boyd's help I started using much the same method as below. Difference being that I start with 6 split pie splitter. From there to the vise. Clamp above the node and split to there, clamp just below the node and split thru the node. and then repeat process. The node is the best place to move the split one direction or the other. This is not a fast way to split but it works well for me. (Larry Tucker)
In THEORY, he could get two 2 piece, 1 tip rods out of it. But realistically, I would be aiming for one rod. There are sooo many things you can screw up (As Chris Raine taught me, "Ask me how I know.") from planing the wrong edge during the initial bevel to catching the tip when final planing in the form, that is it more than likely, actually I would say expected, that one would need a couple of back up strips to replace mistakes before glue up. After glue up, the mistakes are pretty much fatal: start over.
I keep a log of my rodmaking. In only fifteen rods, I can't tell you how many times I have written "Arrrgh!!" in my log I keep inventing new (to me) ways to screw up. But I am very proud of my end results, since I am willing to scrap any piece I am not happy with. (My standards aren't THAT high, but I do the best work I can.) I am just glad I am not trying to make a living...
And besides, cane is pretty cheap. If you get one good rod out of a culm, you got something very valuable. No shame at all. (Dan Zimmerlin)
One of the little tricks I learned to keep myself from catching a tip while cleaning out the form groove between flips, is to hold the tip strip with your left hand below the strip, palm up, tip end high. You can then do whatever you need to do with your right hand, and the delicate tip end of the strip is out of the way of harm.
Those of you working in basements or dungeons with low ceilings are SOL.
Oh yeah, and never install a ceiling fan over the work bench. (Mark Wendt)
And why would you not install a ceiling fan above your workbench? I assume so that your tongue does not get caught?
I ask only for my own edumakation purposes... (Greg Dawson)
I'm not so sure we would have all those fabulous small rods (ie. Paul Young Midge) were it not for such devices! (Joe Arguello)
Being a rank beginner myself, I have been enjoying this thread on splitting and thought I would toss in my 2 cents worth of experience. When I decided to plunge headlong into this rod making thing I ordered a bundle of culms from Andy Royer and when the time came to split that first culm I picked what I thought was the worst looking candidate out of the 10 on hand thinking it would be a good practice piece. If I screwed it up at least it wasn't one of the good ones. This culm was crooked, slightly egg shaped, and the nodes were pretty prominent. Well considering I had no experience and was going only by the descriptions in a couple of books I wasn't optimistic. My froe was an old pry bar with one edge roughly sharpened on the bench grinder. Splitting in half was easy. At that point I clamped the froe upright in the bench vise and split the halves into thirds. Again this went pretty well, just a couple of strips that wandered a little and ended up narrower on the tip end. Then came splitting in half again and then again. The worst problem I had was that I couldn't seem to keep the split edges going perpendicular to the enamel surface and thus ended up with a bunch of funny edge angles to deal with.
At this point I was a pretty happy camper. Since the splitting went better than expected I proceeded on to straightening and pressing nodes. My nice mild mannered culm became a nightmare. These strips were an advanced course in the process. they had kinks, S bends, sunken nodes, and longitudinal twists. If I got the kinks out, the nodes popped back up. If I straightened first then pressed, the kinks came back. The funny edge angles raised havoc during pressing and I had to spend a lot of time rough planing them almost square. I think I spent a week heating and beating those strips into submission and probably overcooked a couple of spots along the way.
In the end, I managed to build two rods out of that culm, one a two tip two piece and the other a single tip two piece. My second culm was an entirely different story. it looked nice, straight, round, smooth, no leaf nodes and only a couple of small surface marks . This beast just would not split straight no matter what I did. Even the initial split into halves resulted in kind of a spiral half shell. I fought it all the way and ended up with a pile of spears with barely enough good strips to make a single one tip rod.
I have learned that no two culms are the same and first attempts may not be indicative of future success (or failure). I split my third culm last week and it went much better. maybe I have learned something (or not). I will have to give the vise method a try. It sounds promising. (Rick Hodges)
The worst problem I had was that I couldn't seem to keep the split edges going perpendicular to the enamel surface and thus ended up with a bunch of funny edge angles to deal with
Rick, the secret to avoiding this is to make sure your splitter is perpendicular to the enamel before starting the split and thereafter not to deviate too far from perpendicular as you run the split.
I start with the culm cut to length and stand it vertically on the floor. The first split into halves is easy as you can line the splitter through the center of the culm. For further splits, I stand the pieces vertically resting against a bench and draw in my mind an imaginary line through what would have been the center of the culm. I line the splitter (a hunting knife or froe) with this imaginary line, rest it on the section and when I am sure all is aligned I then give the splitter a short sharp tap with a hammer to start the split. To run the split I twist the knife and then move it down the split - DON'T FORCE/DRIVE THE KNIFE down the split. The twisting action should be just enough to open the split a little further and you simply move the knife down the split. At the nodes some more force is required in the twist to break through the node. If you over twist the splitter, the side of the split may move off perpendicular. Use just enough force to open the split and keep the splitter running through the imaginary line passing through the center of the culm
Once the strips start getting to the point where they are narrow enough to be able to bend them, and you can then control ('walk') the split down the centre, I mount a splitter (knife or old screwdriver with sharpened side) in a vice and feed the strips into the splitter rather than the splitter into the strips. Instead of twisting the knife I now push and pull the strips laterally against the knife which is effectively the same thing as twisting the knife. Again DON'T DRIVE/FORCE THE STRIPS into the knife. Only feed them in as far as the split easily allows before pushing and pulling again to open the split further. Doing this there is no chance of slipping and mashing your hand into the splitter as the force you are applying is at 90 deg to the strip and knife not in the same line.
The big trick is, when the split starts to go off centre, to bend the strip as you work it against the knife and to work gently/slowly i.e. making short further splits until it is back on track. Thinking about it I can't tell you for sure which way to bend it, it is just something I now automatically do. I think I bend the fat piece 'around' the splitter - trial and error will quickly show you which way to do it.
Doing the above I regularly split a culm into 32 or even 36 pieces (for light weight rods as the strips get quite narrow). (Steve Dugmore)
The big trick is, when the split starts to go off center, to bend the strip as you work it against the knife and to work gently/slowly i.e. making short further splits until it is back on track. Thinking about it I can't tell you for sure which way to bend it, it is just something I now automatically do. I think I bend the fat piece 'around' the splitter - trial and error will quickly show you which way to do it.
Doing the above I regularly split a culm into 32 or even 36 pieces (for light weight rods as the strips get quite narrow).
Bend the "Fat" side away from the split that is going off the line to bring the split back in line. If the split is moving to the right, bend the left side away from the split or put pressure on the left side with the back of the fro and the split will come back in line. I hold the section in my hand with the long end under my arm. My left hand is just below the splitting fro. I use my hand to apply pressure against the fro on the side that needs it to keep the split in line. If I find I need more pressure when splitting in thirds, I use a post or the end of the workbench to help bend the "Fat" side away from the split. Bending the fat side away from the split came from a list member from Maine some years ago. His name slips my mind right now.
Maybe he will pop in.
See Power Fibers article issue #35 for photos on bending away from the split. (Tony Spezio)
I enjoy splitting culms.
After filing the outside node and removing that black stuff, I quarter the culm and then use my 1-1/4" gouge and with mallet and take out all inside nodes. I do this because I think it helps the hand splitting process because there is less material to pull apart and I'm going to have to get rid of those nodes sometime so why not take that quarted piece with nodes to a good solid whack of the mallet with gouge.
I take that quartered piece that now has less nodal material and line up my knife for width and perpindicular, smack it with my hammer and this starts the split that I continue by hand guiding it down the culm.
I've split the last 20 or so culms this way and waste very little if any material. Anyway it works for me. (Doug Alexander)
Some years ago I wrote quite a lengthy description of this process which Todd put on the Tips site. It was as full and detailed as I could make it, and believe me, the process DOES work. On a previous discussion of the topic one of our members rather patronisingly (I thought, at any rate) questioned why anybody would need to use the vise; but the simple answer to that one is that the vise tends to control over-splitting and limits the length of the split. and careful application of the principle of holding one piece firm and straight while pulling on only one will surely allow you to walk the split pretty well anywhere you need to walk it.
Everybody's first attempt at splitting yields pathetic results. Twelve and fourteen is not too bad, really. And remember that not everybody is able to split 24 strips from every culm, every time.
Hang in there. You'll be on top of it in no time! (Peter McKean)
Practice, practice, and practice. If that doesnt work, band saw.. Read Cattanach's and Maurer's books as well. By the way, if garden stakes are available from your local garden center are available, practice on those. (Jon Holland)
Please do not be embarrassed to discuss any need for rod building you encounter. I have already asked most of the dumb questions and find that this list is very patient and will generally guide you in the right direction. Through this list I met Tony Spezio who I had the great honor to meet when I was at the SRG last year. He sent me a video of how he splits cane and it really works well. If he is amenable, I will make a copy and send it to you. But, I think someone has already said it best, practice! (George Wood)
I heartily second what George says here about Tony Spezio. That guy has gone out of his way to help me and no one should ever feel they have to do that! (Well, there is the wife...never mind that.) Hear that Tony? If it wasn't for sliced bread, I'd have to say you're the best thing out there! (Did I just call you a thing? Well, I was raised by wolves...what do you expect?{:^)) (Bob Brockett)
Thanks for everyone's input. I tried again today utilizing the knife/vise method, and the tips provided started to click in terms of being able to control the wandering, produce straighter strips, etc. It started to be an enjoyable experience instead of an arduous task. However, my splitting endeavors resulted in enough strips for at least 6 rods. It ultimately is going to be awhile until that many rods will be completed. Are there any considerations concerning storing the strips beyond not being in a damp environment? (Ron Delesky)
Well it doesn't hurt to keep them dry obviously. It also doesn't hurt to have them absorb some moisture as that will get driven off during heat treating. I wouldn't let them sit in water for 2 years though! :>) (Larry Swearingen)